High
Security advisory
A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-5436
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:08 UTC · Revision 1
Source evidence
A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.
osv:CVE-2019-5436
Complete source record
{
"id": "24be51989a15f946601d6c6586e8812feea8ee92fd4741a29da71f19e63626da",
"url": "https://osv.dev/vulnerability/CVE-2019-5436",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-5436",
"summary": "A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.",
"evidence": "osv:CVE-2019-5436",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-5436",
"aliases": [
"CURL-CVE-2019-5436",
"CVE-2019-5436"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/curl/curl",
"type": "GIT",
"events": [
{
"introduced": "042cc1f69ec0878f542667cb684378869f859911"
},
{
"last_affected": "521bbbe29928f9bc1c61306df612e856d45cbe5a"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.19.4"
},
{
"last_affected": "7.64.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"curl-7_64_1",
"curl-7_64_0",
"curl-7_63_0",
"curl-7_62_0",
"curl-7_61_1",
"curl-7_61_0",
"curl-7_60_0",
"curl-7_59_0",
"curl-7_58_0",
"curl-7_57_0",
"curl-7_56_1",
"curl-7_56_0",
"curl-7_55_1",
"curl-7_55_0",
"curl-7_54_1",
"curl-7_54_0",
"curl-7_53_1",
"curl-7_53_0",
"curl-7_52_1",
"curl-7_52_0",
"curl-7_51_0",
"curl-7_50_3",
"curl-7_50_2",
"curl-7_50_1",
"curl-7_50_0",
"curl-7_49_1",
"curl-7_49_0",
"curl-7_48_0",
"curl-7_47_1",
"curl-7_47_0",
"curl-7_46_0",
"curl-7_45_0",
"curl-7_44_0",
"curl-7_43_0",
"curl-7_42_0",
"curl-7_41_0",
"curl-7_40_0",
"curl-7_39_0",
"curl-7_38_0",
"curl-7_37_1",
"curl-7_37_0",
"curl-7_36_0",
"curl-7_35_0",
"curl-7_34_0",
"curl-7_33_0",
"curl-7_32_0",
"curl-7_31_0",
"curl-7_30_0",
"curl-7_29_0",
"curl-7_28_1",
"curl-7_28_0",
"curl-7_27_0",
"curl-7_26_0",
"curl-7_25_0",
"curl-7_23_1",
"curl-7_23_0",
"curl-7_22_0",
"curl-7_21_7",
"curl-7_21_6",
"curl-7_21_5",
"curl-7_21_4",
"curl-7_21_3",
"curl-7_21_2",
"curl-7_21_1",
"curl-7_21_0",
"curl-7_20_1",
"curl-7_20_0",
"curl-7_19_7",
"curl-7_19_6",
"curl-7_19_5",
"curl-7_19_4"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5436.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/mysql/mysql-server",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "817fcb883a8457fcf507156bb1a2052e887acc4c"
},
{
"introduced": "b2f3214ae2b4a250d3b8a7b7a61037f89b5dc9b1"
},
{
"last_affected": "77306a41670543e103f94fa0db77a71d2b9f88b2"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "5.7.27"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "5.7.28"
},
{
"last_affected": "8.0.17"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"mysql-5.7.27",
"mysql-8.0.17",
"mysql-cluster-8.0.17",
"mysql-5.1.4",
"mysql-4.0.4",
"mysql-4.0.2",
"mysql-3.23.36",
"mysql-3.23.33",
"mysql-3.23.32",
"mysql-3.23.31",
"mysql-3.23.30-gamma",
"mysql-3.23.28-gamma",
"mysql-3.23.22-beta"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5436.json"
}
}
],
"modified": "2026-10-24T10:30:35.838819197Z",
"provider": "osv",
"references": [
"https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SMG3V4VTX2SE3EW3HQTN3DDLQBTORQC2/",
"https://support.f5.com/csp/article/K55133295?utm_source=f5support&%3Butm_medium=RSS",
"https://www.oracle.com/security-alerts/cpuoct2020.html",
"https://seclists.org/bugtraq/2020/Feb/36",
"https://security.gentoo.org/glsa/202003-29",
"https://security.netapp.com/advisory/ntap-20190606-0004/",
"https://support.f5.com/csp/article/K55133295",
"https://www.debian.org/security/2020/dsa-4633",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://curl.haxx.se/docs/CVE-2019-5436.html",
"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:*:*:*:*"
],
"vendor_product": "f5:traffix_signaling_delivery_controller",
"extracted_events": [
{
"range": [
{
"introduced": "5.0.0"
},
{
"last_affected": "5.1.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "29"
},
{
"last_affected": "29"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "15.0"
},
{
"last_affected": "15.0"
},
{
"introduced": "15.1"
},
{
"last_affected": "15.1"
},
{
"introduced": "42.3"
},
{
"last_affected": "42.3"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:enterprise_manager_ops_center",
"extracted_events": [
{
"range": [
{
"introduced": "12.3.3"
},
{
"last_affected": "12.3.3"
},
{
"introduced": "12.4.0"
},
{
"last_affected": "12.4.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:oss_support_tools:20.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:oss_support_tools",
"extracted_events": [
{
"range": [
{
"introduced": "20.0"
},
{
"last_affected": "20.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-5436",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433834,
"published_at": "2019-05-28T19:29:06.127+00:00"
}